Vulnerability details
CVE-2026-74648
Linux Linux
staging: rtl8723bs: validate monitor transmit frame lengths
CVSS 3.1
7.8High
Official description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: validate monitor transmit frame lengths rtw_cfg80211_monitor_if_xmit_entry() removes the radiotap header and then reads the 802.11 frame control field without checking that a base 802.11 header remains. The data path also pulls the calculated 802.11, QoS and SNAP header span before confirming that the skb contains it. A truncated frame can therefore cause out-of-bounds reads or leave insufficient data for the Ethernet address writes. Reject frames that do not contain the base 802.11 header and data frames that do not contain their complete calculated header span.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 4.12 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b ≤ v < a3ac6d849de5f7abe14761d741bbb843ac793454 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b ≤ v < 7edd3adb0c80d70b4237640275c559610f438476 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b ≤ v < c5e5d78743992e235b76d2ebe5a403d60315aa8a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b ≤ v < f03398d835f5249c49546f0eb0d0df6792b95d5f | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b ≤ v < 8b3e4ed9c35d3d3b64fcc23f4a1f22b37c1865b1 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b ≤ v < bd88f6289b7e483216a9c1df15a0460ef9b02cb6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b ≤ v < 6829665d050983907b560173e49dcc6c11cb2730 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b ≤ v < 7b0f62d2986a28e5e4188366bc2f4e2868b14790 | CVEProject cvelistV5 (CNA) |
References and advisories
8- https://git.kernel.org/stable/c/f03398d835f5249c49546f0eb0d0df6792b95d5f
- https://git.kernel.org/stable/c/a3ac6d849de5f7abe14761d741bbb843ac793454
- https://git.kernel.org/stable/c/7edd3adb0c80d70b4237640275c559610f438476
- https://git.kernel.org/stable/c/c5e5d78743992e235b76d2ebe5a403d60315aa8a
- https://git.kernel.org/stable/c/7b0f62d2986a28e5e4188366bc2f4e2868b14790
- https://git.kernel.org/stable/c/8b3e4ed9c35d3d3b64fcc23f4a1f22b37c1865b1
- https://git.kernel.org/stable/c/bd88f6289b7e483216a9c1df15a0460ef9b02cb6
- https://git.kernel.org/stable/c/6829665d050983907b560173e49dcc6c11cb2730
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-08-22
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.12%
Probability of exploitation in 30 days
2.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —